Home / 5,189.06-7,783.56-3,109.68

Finding the Fourth Proportional to 5,189.06, 7,783.56 and 3,109.68

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Solution

The fourth proportional to 5,189.06, 7,783.56 and 3,109.68 is: 4,664.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,189.06 : 7,783.56 = 3,109.68 : x
  2. Step 2: Convert to fraction form
    5,189.06/7,783.56 = 3,109.68/x
  3. Step 3: Cross multiply
    5,189.06x = 7,783.56 × 3,109.68
  4. Step 4: Simplify right side
    5,189.06x = 24,204,380.86
  5. Step 5: Solve for x
    x = 24,204,380.86/5,189.06
  6. Step 6: Final answer
    x = 4,664.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.